People born in winter are more likely to suffer from sleep disorders than those born in other seasons.

　　Fan Dongsheng, director of the new "sleeping center", under the Chinese Medical Association in Beijing, made the finding after a survey of over 700 clinical cases.

　　According to the survey, around 40 percent of the sampled patients were born in November, December and January, while 20 percent were born in spring, summer and autumn.

　　Sleep disorders trouble some 100 million Chinese, but only one million sufferers have sought professional treatment.

　　中国医协会北京睡眠中心在调查了700多起临床案例以后，发现冬天出生的人比其它季节出生的人更容易失眠。